the grieving community of newtown, connecticut, began the burials today. just a moment ago, we were approached by a representative for madeleine huh shoe. her family wanted us to know -- i'm going to quote the words they said with all of you, sweet, unique, bright, sparkling, determined little girl. she was an avid reader who loved running and dancing. she was a born leader. this is the start of what will be a painful week as friends and family try to prepare to try to say good-bye to the 20 children and six educators who were killed on friday in the second worst school shooting in american history. as newtown mourns, investigators are still trying to figure out what motivated adam lanza to go on a shooting spree, to kill children, and also take the life of his own mother. we're going to have more on the investigation in a moment. but the truth is, we may never know why adam lanza chose to go on a mass killing spree. we may never know why he chose to go in a school and kill innocent 6 and 7-year-olds, but we're learn aglot more tonight about his mother nan